The modern indoor design takes an emerging discipline, although is also only near dozens of year matters, but the people to their life, the production activity indoor carry on the arrangement arrangement consciously, even beautifies the decoration, entrusts with the indoor environment by the atmosphere which prays causes, the modern indoor design is the modernism construction important composition content. The modern indoor design widely utilizes each kind of building material, each design technique to be good-looking in the creation. Actually does indoor environment's design contain which things, this is the question which is worth further clarifying. The indoor design mainly refers to under the modern architecture condition, the creation reasonable consummation's construction indoor environment, satisfies material which and the spiritual life need the people grow unceasingly. Now the indoor design more and more receives takes seriously, is because it has the very strong social basis and the full reflection time need. The indoor design is take creates the good indoor space environment as an objective, satisfies the people in indoor to carry on the production, the life, the work, the rest request to put in the first place, therefore in indoor design time must consider fully the use function request, causes the indoor environment rationalization, comfortable, the scientific style; Must consider that people's plan of action deals with the spatial relations, the spatial size, the spatial proportion; The reasonable disposition arrangement and the furniture, solve the indoor air ventilation properly, the natural lighting and the illumination, pays attention to the indoor tone the overall effect. Small spatial arrangement, should also by the human primarily, talk about the spatial use, must first grasp five big principles: Upward development; Downward strives for; Elastic utilization; Overlaps the use; The dead angle applies flexibly.